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Zero Two K64 battle.png
Kirby and Ribbon against 0², as seen in The Crystal Shards.
First game Kirby 64: The Crystal Shards
Other game(s) Kirby Star Allies
Weakness(es) Ribbon's Crystal
Relative(s) Zero, Dark Matter, Miracle Matter
Similar to Star Dream, Void Termina, Void Soul, Void
Theme music

0² Battle

Clip of 0²'s battle theme from Kirby 64: The Crystal Shards

Enemy Info Card K64 Enemy Info Card 9.png

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(Zero-Two) is the mastermind and Final Boss behind the events of Kirby 64: The Crystal Shards, fought in the Dark Star. It is a zombified version of Zero from Kirby's Dream Land 3, but it is not the same character. [citation needed] Collecting all Crystal Shards before the Miracle Matter battle is required to meet 0², or the False Ending is triggered.

0² wishes to build upon the original Zero's conquest by taking over the surrounding planets of Pop Star. 0² can only feel negative emotions and believes the whole galaxy should be unhappy like him. [citation needed]

Physical appearance[edit]

0² has a halo, a pair of wings (which are dark red at the tips), and dark red eyes. He also has a cactus-like appendage on its underside, a bandage under its halo, and a spike at the bottom. 0² also releases blood (confirmed to be such by the credits illustration of 0² and the game's ESRB rating in Kirby's Dream Collection) when its eye is hit, making 0² and Zero the most maturely depicted bosses in the whole series. Its halo and wings may suggest that 0² is a reincarnation or angelic form of Zero.

Boss battle[edit]

Attacking 0²'s underside (above), and the explosion upon defeat (below).

0² has only two forms of attack: firing explosive orbs from its eye, and releasing green gas when its underside is out.

Kirby uses Ribbon's Crystal as a weapon during the battle, and Ribbon uses her wings to guide Kirby around. 0² starts off impervious to any attack, and Kirby must stun it by striking its eye 30 times. Then, Kirby and Ribbon can fly to its halo and shoot it 10 times, after which it vanishes and the bandage is struck. 0² also flips over and reveals a long, green, thorn-like tail at the bottom. From there, either the wings or the tail can be hit. Kirby must deal enough damage to the tail before it retracts, repeating the battle cycle.

While 0² is stunned, it is possible for Kirby to destroy its wings by shooting at them, resulting in 0² moving a lot slower. This also leaves 0² more susceptible to damage, and Kirby can strike 0²'s halo without the need to stun 0². After enough damage is done, 0² is defeated, and it explodes with the Dark Star.


Main article: 0² Battle

The boss battle theme of 0² is composed by Jun Ishikawa and titled 0² Battle. The original track can be found as Music 31 in the Sound Check mode of The Crystal Shards.

This theme has been remixed in Super Smash Bros. Brawl, and the Brawl remix has later been reused in Super Smash Bros. for Nintendo 3DS / Wii U and Super Smash Bros. Ultimate.

This theme has also been remixed for both Kirby Star Allies and the Kirby Café.


0²'s strange face before the fight starts.
  • If the L or R buttons are pressed during the fight in the Virtual Console version, the camera will rotate.
  • If the player pauses the game in Dark Star, the "Try Again" option (which functions the same as "Quit" in other games) will be replaced by "Tough It Out!" (がんばる, "do your best", in Japanese), which functions the same as selecting the "Continue" button, so the player cannot quit the battle.
  • 0² makes a cameo appearance in the Celebration Pictures: "Chasing Our Dreams" and "Bad Boss Brothers" in Kirby Star Allies.
  • Before the fight with 0² begins, the boss briefly shows a strange less-threatening face, with two black dots for eyes and the closed main eye serving as a smiling mouth. Why it briefly looks like this before changing to its look during the fight is unknown.
    • This same face would be referenced much later by Void Termina and Void Soul during their final phases. As Void, he makes the face in his pause screen.
  • The background for this boss is the same as the pool on the ground of The Divine Terminus in Heroes in Another Dimension once three dimensions are cleared and when fighting Morpho Knight in Soul Melter of The Ultimate Choice as Adeleine & Ribbon, Dark Meta Knight and Daroach.